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International Coal Group Wolf Run Mining Company Sago Mine International Coal Group
Wolf Run Mining Company
Sago Mine

January 2, 2006
Fatal Underground Coal Mine Explosion


Due to the extensive nature of this report, we have chosen to break it down into pieces. This should make viewing this report a bit easier. We are providing you with the report without the appendices included, the report with the appendices included, the appendices in one file, and the appendices as separate files. You may download any of these files.

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Reports
  • Fatal Accident Report (Without Appendices - 2,378 kb)


  • Fatal Accident Report (With Appendices - 51,571 kb)


  • Internal Review - Issued 06/28/2007


  • Judicial Opinion - Issued 06/10/2009
    •
    Summary of Investigation
  • Summary of Investigation Presentation (Powerpoint Show - 9,802 kb)
    Once the presentation begins, click on slide to advance to next slide.
    • Appendices
  • Entire Set of Appendices (49,316 kb)


  • By Appendix

    •

    Appendix A List of Deceased and Injured Miners
    Appendix B Detailed Map of Mine
    Appendix C Mine Rescue Personnel and Teams Responding
    Appendix D BCMR Air Quality Measurements Taken On January 2 and 3, 2006
    Appendix E Gas Chromatograph Analysis Results for the No. 1 Drift Opening and Borehole No. 1
    Appendix F Accident Investigation Data - Victim Information
    Appendix G Lists of Individuals Who Assisted with the Investigation
    Appendix H-1 Mapping of the Entire Mine
    Appendix H-2 Mapping of the Entire Mine
    Appendix H-3 Mapping of the Entire Mine
    Appendix H-4 Mapping of the Entire Mine
    Appendix H-5 Mapping of the Entire Mine
    Appendix H-6 Mapping of the Entire Mine
    Appendix H-7 Mapping of the Entire Mine
    Appendix H-8 Mapping of the Entire Mine
    Appendix H-9 Mapping of the Entire Mine
    Appendix I Executive Summary of "Investigation of Pyott-Boone Electronics MineBoss Monitoring and Control System"
    Appendix J Bottom Mining Supplements to the Ventilation Plan
    Appendix K Three Supplements to the Ventilation Plan Concerning Omega Block Seals
    Appendix L Pre-Explosion Simulation of the Mine Ventilation System
    Appendix M Post-Explosion Simulation of the Mine Ventilation System with the Damaged Ventilation Controls
    Appendix N Post-Explosion Simulation of the Mine Ventilation System with the Initial Repairs made to the Damaged Ventilation Controls
    Appendix O Evaluation of Potential for a Roof Fall to Ignite a Methane-Air Mixture
    Appendix P An Evaluation of Features & Description of Features Observed Inby Spad 4010
    Appendix Q Results of the Mine Dust Survey
    Appendix R Map Showing the Location of all Intended Mine Dust Sample Locations and Results
    Appendix S Executive Summary of Inspection of Sago Mine Voice Communications Equipment
    Appendix T Executive Summary of the Trolleyphone Repeater Report
    Appendix U An Executive Summary of Investigation of the Motorola Two-way Radios
    Appendix V Executive Summary of the Evaluation of the Uniaxial Compressive Strength of Burrell "Omega" Blocks
    Appendix W Sampling and Testing of Mortar Bed Cores Taken from Failed Ventilation Seals
    Appendix X Experimental Study of the Effect of LLEM Explosions on Various Seals and Other Structures and Objects
    Appendix Y-1Map of the Electrical System, Equipment, and Associated Items
    Appendix Y-2 Map of the Electrical System, Equipment, and Associated Items
    Appendix Z Executive Summary of Portable Gas Detector Testing
    Appendix AA Vaisala Group and AWS Convergence Technologies, Inc. Reports
    Appendix BB Map Showing Sago Mine in Relation to Recorded Location of Lightning Strikes, a Lightning Damaged Poplar Tree and the Mine's Phone and Power Lines
    Appendix CC Results from Analysis of Seismic Data
    Appendix DD Measurements and Modeling of Transfer Functions for Lightning Coupling into the Sago Mine
    Appendix EE Report on the Investigation of the Well Heads and Gas Pipeline System
    Appendix FF Geophysical Survey of the Old 2 Left Section of the Sago Mine
    Appendix GG Map Showing Sago Mine in Relation to Recorded Locations of Lightning Strikes, Gas Wells and Gas Lines
    Appendix HH Observation and Sampling Collection Methodology
    Appendix II Executive Summary of Submersible Pump Parts Recovered from Sago Mine
    Appendix JJ Sago Mine Pump Cable Test
    Appendix KK Map Showing Earth Resistance Measurement Values
    Appendix LL Mine Map Detailing the Extent of Flame and the Direction of the Primary Explosion Forces
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